How to set flags when calling "setup"

Language Server Protocol (LSP)
1

For example, I want to launch clangd with flags --completion-style=detailed --header-insertion=never. What arguments should I pass when calling setup{}?

2

I think you can do:

require("lspconfig").clangd.setup({
  cmd = {
    "clangd",
    "--completion-style=detailed",
    "--header-insertion=never",
  },
  -- other options
})
3

It works.

Another question about lua: If I write this,

local servers = { "clangd", "rust_analyzer" }
local command = {}

command.clangd = {
  "clangd",
  "--completion-style=detailed",
  "--header-insertion=never",
}

local lspconfig = require("lspconfig")

for _, lsp in ipairs(servers) do
  lspconfig[lsp].setup {
    cmd = command[lsp]
  }
end

Is it OK when starting rust-analyzer?

4

Yep, it should be okay. Not having any value means it’s nil, so it’ll fallback to the default value.

5

I got it. Thank you!